Improvement in chain-clutches



dalla aber @du/ @ffm vHIRAM-PITO1{I*]R OF F OND DU LAO, WISCONSIN, ASSIGNOR TO HIMSELF AND & G. O. TROWBRIDGE, OE SAME PLAGE.

IMPROVEMENT IN CHAIN-CLUTCHE-S.

The Schedule referred to in these Letters Patent and making Vpari; of the same.

thereof, which will enable others skilled in the art to make and use Vthe samereference beingA had to the accompanying drawing forming part of this specification.

This invention relates to a new and useful improve` I ment in clutchesfor chain-pulleys or wheels and windlasses, and for all applicable; and

It consists in a series of self-adj usting blocks, each with a recess for receiving and holding a chain, arranged ina groove` around a wheel, drum, or .windpurposes to which it is adapted or lass, or other revolving body, as hereinafter more fully described.

In the accompanying drawing- Figure I re'presents a sectional plan view of a horsepower, to which my clutch is applied, to. showthe mannerof its application.'

Figure 2.is a side view of the clutch arranged inits groove in .the face of a wheel, a section only of the latterbeing shown.

Eigure 3 is a frontview of one clutch-block, de-

tached.

' Figure 4is a perspective view of the chain-suplports atrthe ends of the horse-power'arms or levers.

Similar letters of reference indicate corresponding,lr parts. Ais the clutch, which is composed of a series of Y. blocks, I5,v of metal, of a size to correspond with the links of the chain to be used.

The general formof the block is seen in the figs. 2 and 3. A

The cavity in the face of eachblock is designed to receive or iuclose the link of the chain, while it will 'draw upon the end of the adjacent link as well as upon the inclosed link. y

These blocks are pivoted at top and bottom in a groove, C, in the face of the-wheel, drum, or windlass, or other revolving body, at distances apart to correspond with the links of the chain.

The spaces between theclutches receive the alternat-e links of the chain as the wheel revolves, holding and conveying, by means of gear-wheels, pulleys, or other devices, the power applied. As the clutch-wheel revolves, the separate blocks, byreasou of the pivots by which they are confined in the groove, adjust themselves to the chain so as to hold it iirmly` whatever may be the amount of power applied.

The advantages of this .chain-clutch for horse-powers, hoisting-machines, windlasses, 86e., are runny, and

`must be obvious to all.

Having thus described my invention,

I claim as new, and desire to secure by Letters Patent- 1. In combination with a wheel, pulley, drum, windlass, or other revolving body, the clutch A, constructed, arranged, and operating substantially as described.

'2. The chain-clutch, provided with truunions at its inner end, andpivoted so as to be self-adjusting, as shown anddcscribed.

l HI-RAM PITCHER.

Witnesses:

L. E. HAZEN, R. 000K. 

